ATS-150901 V3

Are you reading a DTC B121E (climate control unit lost communication with touch control panel) on the HDS and you can’t find anything in the service information to help you troubleshoot it? Just use the troubleshooting procedure for DTC U0180 (lost communication with auto L/T); it’s the one you want. DTC B121E was mistakenly assigned to this vehicle and really doesn’t apply. We’ll be revising the DTC U0180 troubleshooting procedure to include DTC B121E.